Please explain the last part.

Part 3 of 6 (c) Find the probability that more than 45% of the sampled teenagers own a smartphone. The probability that more than 45% of the sampled teenagers own a smartphone is .1270 Alternate Answer: 0.1270 Part 4 of 6 (d) Find the probability that the proportion of the sampled teenagers who own a smartphone is between 0.35 and 0.45. The probability that the proportion of the sampled teenagers who own a smartphone is between 0.35 and 0.45 is .7462 Alternate Answer: 0.7462Part 5 of 6 X (e) Find the probability that less than 45% of sampled teenagers own smartphones. The probability that less than 45% of sampled teenagers own smartphones is .9429 Correct Answer: 0.8731 Part: 5 / 6 Part 6 of 6 (f) Would it be unusual if less than 32% of the sampled teenagers owned smartphones? It (Choose one) v be unusual if less than 32% of the sampled teenagers owned smartphones, since the probability isSmartphones: A poll agency reports that 40% of teenagers aged 12-17 own smartphones. A random sample of 125 teenagers is drawn. Round your answers to at least four decimal places as needed. Part 1 of 6 (a) Find the mean uA. The mean HA IS .40 Alternate Answer: 0.40 Part 2 of 6 V (b) Find the standard deviation oA. The standard deviation of is .0438 Alternate Answer: 0.0438